South Antrim is Northern Ireland’s 9th-largest constituency by population, with 108,443 residents as of the 2024 mid-year estimate. It covers 625.6 square kilometres — the 9th-largest constituency by area — giving it the 9th-highest population density in Northern Ireland, at 173.3 people per square kilometre.
Who represents you
Turnout in South Antrim at the 2022 Assembly election was 60.0%. The constituency currently elects five MLAs:
- Steve Aiken OBE — Ulster Unionist Party (Deputy Speaker)
- John Blair — Alliance Party (Deputy Speaker)
- Declan Kearney — Sinn Féin
- Trevor Clarke — Democratic Unionist Party
- Pam Cameron — Democratic Unionist Party
Health
Life expectancy in South Antrim runs above the Northern Ireland average for both sexes: 80.0 years for men (NI average 78.8) and 83.2 years for women (NI average 82.5), based on 2021–2023 data.
Disease prevalence runs below the NI average across most conditions tracked for 2024–2025, including hypertension, asthma and cancer, with diabetes prevalence the one measure running slightly above it.
Education
School leavers in South Antrim track close to the NI average for 2023–2024 — 87.3% achieved at least 5 GCSEs at grades A*–C or equivalent, against an NI average of 87.4%.
Economy and benefits
The employment rate in South Antrim rose from 72.2% in 2014 to 73.6% in 2024, running close to the Northern Ireland average of 74.3%. Benefits claims run at or below the NI average across most categories — for instance, 8.7% of the population claims Universal Credit, against an NI average of 11.4%.
Data sources
Figures are drawn from the NI Assembly Research and Information Service’s Constituency Profiles dashboard, sourced from NISRA, the Department of Health, the Department of Education, the Department for Communities and the Police Service of Northern Ireland. Most recent update: April 2026.
Track South Antrim’s MLAs and constituency page at mlas.news/constituency/south-antrim/.